/*
 Copyright (C) 2008 Siarhei Novik (snovik@gmail.com)
  
 This file is part of QLNet Project http://qlnet.sourceforge.net/

 QLNet is free software: you can redistribute it and/or modify it
 under the terms of the QLNet license.  You should have received a
 copy of the license along with this program; if not, license is  
 available online at <http://qlnet.sourceforge.net/License.html>.
  
 QLNet is a based on QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/
 The QuantLib license is available online at http://quantlib.org/license.shtml.
 
 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE.  See the license for more details.
*/
using System;
using System.Collections.Generic;

namespace QLNet
{
    //! 1/1 day count convention
    public class OneDayCounter : DayCounter
    {
        public OneDayCounter() : base(Impl.Singleton) { }

        class Impl : DayCounter
        {
            public static readonly Impl Singleton = new Impl();
            private Impl() { }

            public override string name() { return "1/1"; }
            public override int dayCount(Date d1, Date d2)
            {
                // the sign is all we need
                return (d2 >= d1 ? 1 : -1);
            }

            public override double yearFraction(Date d1, Date d2, Date refPeriodStart, Date refPeriodEnd)
            {
                return dayCount(d1, d2);
            }
        }
    }
}